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Chess 4 (Computer)
  
Number of games in database: 12
Years covered: 1972 to 1980
Overall record: +9 -1 =2 (83.3%)*
   * Overall winning percentage = (wins+draws/2) / total games.

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C44 King's Pawn Game (2 games)
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CHESS 4 (COMPUTER)
(born 1968) United States of America

[what is this?]
Its programmers are Larry Atkin, Keith Gorlen and David Slate of Northwestern University and is mainly written in Assembler and FORTRAN.

 page 1 of 1; 12 games  PGN Download 
Game  ResultMoves Year Event/LocaleOpening
1. D Levy vs Chess 4 ½-½24 1972 SparksC34 King's Gambit Accepted
2. Tech 2 vs Chess 4 0-149 1974 World Computer ChampionshipB88 Sicilian, Fischer-Sozin Attack
3. Chess 4 vs Ostrich 1-048 1974 World Computer ChampionshipC10 French
4. Chaos vs Chess 4 1-079 1974 World Computer ChampionshipD29 Queen's Gambit Accepted, Classical
5. Chess 4 vs Ribbit  1-039 1974 World Computer ChampionshipB92 Sicilian, Najdorf, Opocensky Variation
6. Chess 4 vs Kaissa ½-½65 1974 World Computer ChampionshipB01 Scandinavian
7. Kaissa vs Chess 4 0-144 1977 World Computer ChampionshipB00 Uncommon King's Pawn Opening
8. Belle vs Chess 4 0-152 1977 World Computer ChampionshipB00 Uncommon King's Pawn Opening
9. Chess 4 vs Duchess  1-050 1977 World Computer ChampionshipC43 Petrov, Modern Attack
10. Master vs Chess 4  0-141 1977 World Computer ChampionshipA09 Reti Opening
11. Chess 4 vs Bcp 1-027 1977 World Computer ChampionshipC44 King's Pawn Game
12. Chess 4 vs Schach 2 3 1-034 1980 ch-World COMPC44 King's Pawn Game
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Chess 4 wins | Chess 4 loses  

Kibitzer's Corner
Oct-25-04
Premium Chessgames Member
  Knight13: Wow! This computer won most of the games! If it still exist today, it would be like Deep Fritz or something close to it.
Oct-26-04  tomh72000: <Knight13> It would be vastly inferior to Deep Fritz, because chess engines have advanced a huge amount since 1980.
Oct-26-04
Premium Chessgames Member
  Knight13: <tomh72000> What I mean is, if it still exist today, it would have benn envolved into a strong program like Deep Fritz.
Oct-27-04  tomh72000: Maybe you are right, it could evolve as Fritz and others have done.
Oct-29-04
Premium Chessgames Member
  Knight13: This computer must have been on the world computer championship. I am sure of it.
May-13-05
Premium Chessgames Member
  Caissanist: This was the program that played, and lost, to David Levy in 1979 at the conclusion of Levy's famous bet, since it was the computer world champion at the time. This version was called Chess 4.7, and had evolved about as far as it could off its current code base. Its programmer David Slate did try to come out with a totally rewritten version, called Chess 5.0, in time for the Levy match. He couldn't make the deadline, though, and the project was abandoned. Levy won the match easily.
May-13-05
Premium Chessgames Member
  Caissanist: Correction--Chess 5.0 was not abandoned, but rather was renamed Nuchess. Under that name it played in several of the ACM computer championships in the early eighties. By then, however, other programs (notably Belle and Cray Blitz) had passed it by.
Oct-24-07  Petrosianic: <Wow! This computer won most of the games! If it still exist today, it would be like Deep Fritz or something close to it.>

By that reasoning, the best player in history would have to be Gioachino Greco

But the database isn't complete, you know. None of the games of the aforementioned Levy match, which it lost, are here, for example. They all seem to be stored under CHESS 4.7 (Computer) rather than here.

Oct-11-09  WhiteRook48: no that was when it became CHESS 4.7
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